LTC6915I 查看數據表（PDF） - Linear Technology

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LTC6915I

Zero Drift, Precision Instrumentation Amplifier with Digitally Programmable Gain

Linear Technology 

LTC6915

Electrical Characteristics The l denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C.

VOS

IOS

CMRR

Input Offset Voltage (Note 3)

Average Input Offset Drift (Note 3)

Average Input Bias Current (Note 4)

Average Input Offset Current (Note 4)

Common Mode Rejection Ratio

PSRR

Power Supply Rejection Ratio (Note 5)

Output Voltage Swing High

VCM = 200mV

–3

±10

TA = –40°C to 85°C

TA = 85°C to 125°C

l

±50

±100

VCM = 1.2V

l

5

10

VCM = 1.2V

l

1.5

3

AV = 1024, VCM = 0V to 5V, LTC6915C

l 105 125

AV = 1024, VCM = 0.1V to 4.9V, LTC6915I l 105

125

AV = 1024, VCM = 0V to 5V, LTC6915I

l 95

125

AV = 1024, VCM = 0.1V to 4.9V, LTC6915H l 100

AV = 1024, VCM = 0V to 4.97V, LTC6915H l 85

VS = 2.7V to 6V

l 110 116

Sourcing 200µA

Sourcing 2mA

l 4.95 4.99

l 4.80 4.93

Output Voltage Swing Low

V+ = 5V, V– = 0V, VREF = 200mV

Supply Current, Parallel Mode

Supply Current, Serial Mode (Note 6)

Sinking 200µA

l

Sinking 2mA

l

No Load at OUT, VCM = 200mV

l

No Load at OUT, Capacitive Load at

l

DOUT (CL) = 15pF, Continuous CLK

Frequency = 4MHz, CS = LOW,

Gain Control Code = 0001

17

50

120 300

0.95 1.48

1.4

2

Supply Current, Shutdown

VSHDN = 4.5V (Hardware Shutdown)

l

VSHDN = 1V, Gain Control Code = 0000

l

(Software Shutdown)

2

10

135 200

SHDN Input High

l 4.5

SHDN Input Low

l

1

SHDN and HOLD_THRU Input Current (Note 2)

l

5

Internal Op Amp Gain Bandwidth

200

Slew Rate

0.2

Internal Sampling Frequency

V+ = 5V, V– = –5V, VREF = 0V

Gain Error (Note 2)

Gain Error (Note 2)

Gain Error (Note 2)

Gain Error (Note 2)

Gain Nonlinearity

VOS

Input Offset Voltage (Note 3)

Average Input Offset Drift (Note 3)

IOS

Average Input Bias Current (Note 4)

Average Input Offset Current (Note 4)

AV = 1 (RL = 10k)

AV = 2 to 32 (RL = 10k)

AV = 64 to 1024 (RL = 10k)

AV = 2048, 4096 (RL = 10k)

AV = 1

VCM = 0mV

TA = –40°C to 85°C

TA = 85°C to 125°C

VCM = 1V

VCM = 1V

3

l –0.075 0

l –0.5

0

l –0.6 –0.1

l –1

–0.2

l

3

5

l

l

l

4

l

1.5

0.075

0.5

0.6

1

15

±20

±50

±100

10

3

µV

nV/°C

nV/°C

nA

nA

dB

dB

dB

dB

dB

dB

V

V

mV

mV

mA

mA

µA

µA

V

V

µA

kHz

V/µs

kHz

%

%

%

%

ppm

µV

nV/°C

nV/°C

nA

nA

6915fb

4

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